KK Connectors

Molex KK Interconnection System consists of connectors that form the building block for creating thousands of different configurations. This system offers polarization features that ensure correct mating. The system incorporates offset header entry holes that provide +180°C polarization and allows both power and signal to carry through the same housing. This connector system also enables loading with optional polarization keys and pegs that ensure the one-way mating of headers and housings. Molex KK Interconnection System comes with customizable KK headers that offer more polarization options and design configurations. These include headers with voided pins, customized pin lengths, kinked PC tails, and varying tin or gold plating options.

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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
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Number of Rows
Mounting Style
Termination Style
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Contact Gender
Contact Plating
Mating Post Length
Termination Post Length
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Wire Gauge
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Packaging
Molex Headers & Wire Housings PCB RECPT 5P W/HOOKS TOP ENTRY
Datasheet
621In Stock
Min.: 1
Mult.: 1

Headers Receptacle 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 4CKT PCB CONN TOP ENTRY
Datasheet
1,293In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 5CKT TOP ENTRY RECEPTACLE
Datasheet
165In Stock
Min.: 1
Mult.: 1

Headers Receptacle 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 8 CKT HEADER
Datasheet
664In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 20P 0.1" PCB KK
Datasheet
1,242In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 20 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Tray
Molex Headers & Wire Housings 4CKT HDR FLAT VERT
Datasheet
722In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings VERT PCB HDR 10P TIN PLATING
Datasheet
2,628In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 15 CKT HEADER
Datasheet
240In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 15 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.49 mm (0.295 in) 3.43 mm (0.135 in) 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 05 Ckt Tin
Datasheet
4,131In Stock
Min.: 1
Mult.: 1

Headers Locking 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 6373 KK

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 5Ckt Tin VoidCkt 2&
Datasheet
574In Stock
Min.: 1
Mult.: 1

Headers Locking 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK - 40 C + 80 C

Molex Headers & Wire Housings KK .100" HDR 08P VT SN
Datasheet
165In Stock
Min.: 1
Mult.: 1

Headers Locking 19 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK - 40 C + 80 C
Molex Headers & Wire Housings R/A PCB HDR 2P TIN PLATING
Datasheet
2,140In Stock
48,000Expected 25/9/2026
Min.: 1
Mult.: 1

Headers Pin Strip 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 4094 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 6P TIN PLATING
Datasheet
3,231In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 4094 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 7P TIN PLATING
Datasheet
1,076In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 4094 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 10P TIN PLATING
Datasheet
2,304In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 4094 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 5P TIN FRICTION LOCK
Datasheet
4,299In Stock
11,400Expected 30/11/2026
Min.: 1
Mult.: 1

Headers Locking 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 13 CKT R/A F/L HDR
Datasheet
292In Stock
Min.: 1
Mult.: 1

Headers Locking 13 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 16 CKT R/A F/L HDR
Datasheet
680In Stock
Min.: 1
Mult.: 1

Headers Locking 16 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 20 CKT R/A F/L HDR
Datasheet
1,101In Stock
Min.: 1
Mult.: 1

Headers Locking 20 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.71 mm (0.264 in) 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings RA FRICTION LK HDR 7
Datasheet
918In Stock
Min.: 1
Mult.: 1

Headers Locking 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.71 mm (0.264 in) 3.8 mm (0.15 in) 7395 KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings 2.50 MM VERT HDR
Datasheet
182In Stock
20,000Expected 8/9/2026
Min.: 1
Mult.: 1

Headers Locking 6 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.5 mm (0.295 in) 3.4 mm (0.134 in) 5045 Mini-Latch/KK Wire-to-Board, Signal - 40 C + 105 C Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 10 Ckt Gold
Datasheet
93In Stock
Min.: 1
Mult.: 1

Headers Locking 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 8.08 mm (0.318 in) 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings 13P HEADER GOLD
Datasheet
603In Stock
Min.: 1
Mult.: 1

Headers Locking 13 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 15P HEADER GOLD
Datasheet
91In Stock
Min.: 1
Mult.: 1

Headers Locking 15 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT FRICTION LK 18P
Datasheet
132In Stock
Min.: 1
Mult.: 1

Headers Locking 18 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk